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//===== Copyright <EFBFBD> 2005-2005, Valve Corporation, All rights reserved. ======// |
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// |
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// Purpose: A higher level link library for general use in the game and tools. |
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// |
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//===========================================================================// |
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#ifndef TIER1_H |
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#define TIER1_H |
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#if defined( _WIN32 ) |
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#pragma once |
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#endif |
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#include "appframework/iappsystem.h" |
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#include "tier1/convar.h" |
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//----------------------------------------------------------------------------- |
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// Forward declarations |
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//----------------------------------------------------------------------------- |
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//----------------------------------------------------------------------------- |
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// Call this to connect to/disconnect from all tier 1 libraries. |
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// It's up to the caller to check the globals it cares about to see if ones are missing |
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//----------------------------------------------------------------------------- |
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void ConnectTier1Libraries( CreateInterfaceFn *pFactoryList, int nFactoryCount ); |
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void DisconnectTier1Libraries(); |
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//----------------------------------------------------------------------------- |
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// Helper empty implementation of an IAppSystem for tier2 libraries |
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//----------------------------------------------------------------------------- |
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template< class IInterface, int ConVarFlag = 0 > |
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class CTier1AppSystem : public CTier0AppSystem< IInterface > |
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{ |
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typedef CTier0AppSystem< IInterface > BaseClass; |
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public: |
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virtual bool Connect( CreateInterfaceFn factory ) |
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{ |
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if ( !BaseClass::Connect( factory ) ) |
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return false; |
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ConnectTier1Libraries( &factory, 1 ); |
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return true; |
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} |
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virtual void Disconnect() |
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{ |
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DisconnectTier1Libraries(); |
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BaseClass::Disconnect(); |
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} |
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virtual InitReturnVal_t Init() |
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{ |
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InitReturnVal_t nRetVal = BaseClass::Init(); |
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if ( nRetVal != INIT_OK ) |
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return nRetVal; |
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if ( g_pCVar ) |
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{ |
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ConVar_Register( ConVarFlag ); |
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} |
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return INIT_OK; |
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} |
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virtual void Shutdown() |
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{ |
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if ( g_pCVar ) |
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{ |
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ConVar_Unregister( ); |
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} |
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BaseClass::Shutdown( ); |
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} |
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virtual AppSystemTier_t GetTier() |
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{ |
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return APP_SYSTEM_TIER1; |
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} |
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}; |
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#endif // TIER1_H |
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